import type { Hab, Habery } from "./habbing.js";
/** True when the selected habitat is a local group habitat. */
export declare function isLocalGroupHab(hby: Habery, hab: Hab): boolean;
/** Return the local member habitat for a persisted group identifier. */
export declare function localGroupMember(hby: Habery, groupPre: string): Hab;
/** Return current group signing member AIDs in signing-index order. */
export declare function groupSigningMembers(hby: Habery, groupPre: string): string[];
/** Return the first locally available habitat from `members`, if any. */
export declare function findLocalGroupMember(hby: Habery, members: readonly string[]): Hab | null;
/** Return unique non-empty member AIDs while preserving first-seen order. */
export declare function uniqueMembers(members: readonly string[]): string[];
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